Green Rosellas also called the Tasmanian Rosellas, or Yellow-bellied, Mountain or Green Parrots

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The Green Rosella Platycercus caledonicus is a colorful parrot that can be found in Tasmania and the larger islands in Bass Strait.

Description:

The Green Rosella is Australia's largest rosella at an average length of 14.4 - 14.5 ins. or 36 - 37 cm (including tail), although it is only considered medium-sized when compared to the other parrot species.

The upperparts are dark, mottled green and black - in contrast with the yellow head, neck and underbody. When flying the bright yellow body is very obvious. There are distinct blue cheek patches, a red band across the forehead, and blue shoulder patches. It has a broad tail.

Females are smaller and slightly duller.

Juveniles are mainly green. Young birds attain the adult coloration after their second molt - when they are about 12 to 16 months old. At that time they also become sexually mature.

Similar Species:

The similar, but smaller Eastern Rosella, the only other rosella in Tasmania and it has a mostly red head, neck and breast and a white cheek patch.

Their flight is strong and swift with only slight undulations.

Diet:

A good Rosella diet should consist of canary seed, a mixture of millets, sunflower and safflower. Most people will use a Cockatiel seed mix with added Canary seed. They also enjoy fresh fruits & veggies such as apples, blackberries, oranges, cucumbers, sweet potato and mango. Kale, boiled egg can also be offered. I find that our Crimson Rosellas tend to appreciate fresh foods while the Golden Mantles will take bits and pieces leaving leftovers.

Sprouted or germinated seeds are usually more easily accepted by "seed addicts" than fresh fruits and vegetables.

• Sprouted seeds are healthier as the sprouting changes and enhances the nutritional quality and value of seeds and grains. Sprouted seeds are lower in fat, as the process of sprouting utilizes the fat in the seed to start the growing process - thus reducing the fat stored in the seeds.
• Sprouted seeds will help balance your bird’s diet by adding a nutritious supply of high in vegetable proteins, vitamins, minerals, enzymes, and chlorophyll.
• Soaked and germinated "oil" seeds, like niger and rape seeds, are rich in protein and carbohydrates; while "starch" seeds, such as canary and millets, are rich in carbohydrates, but lower in protein.
• It is in invaluable food at all times; however, it is especially important for breeding or molting birds. Sprouted seeds also serve as a great rearing and weaning food as the softened shell is easier to break by chicks and gets them used to the texture of seeds.
  
  
  • Please click here for more information on bird nutrition.

Breeding:

Rosellas are easy to breed; they are robust, do not fear cold but need a dry shelter. The breeding season usually starts in March or April (in Australia from September through March). When courting the male will bow forward low on the perch while sounding out the mating calls. If approved the hen will do the same and they can often be seen feeding each other before mating.

The Green Rosella hen typically lays 5 to 9 eggs that she incubates alone for about 21 days. During the incubation period she is fed by her mate. Established pairs can be prolific and may produce two to three clutches per season - especially if their young are pulled for handfeeding and they have plenty of food available. However, typically they raise one to two clutches per year. During the incubation period she is fed by her mate. After hatching chicks will leave the nest at about 6 weeks old.

Some breeders prefer to pull babies at 2-3 weeks old for handfeeding. This will allow parents to get started on another clutch. Handfed Rosellas can still be a bit flighty and care should be taken to ensure the wings stay clipped to avoid injury. The young will need daily attention to remain tame.

Housing:

Rosellas do best in an aviary setting or long flight cages as they are avid flyers. It is recommended that couples are kept alone in an aviary, and to even avoid keeping two couples in two contiguous aviaries - as they may be aggressive and get distracted from breeding. If this separation is not possible given the space and resources that you have, it is recommended to have the walls double wired with a separation of about 3 inches (75mm) or even place a solid wall between the neighbors. You also need to have available aviary space for the young birds as they should be separated as soon as they are fully independent of their parents.

Rosellas like to chew on wood therefore metal frames with strong wire / mesh is recommended. 

Minimum aviary size should be about:

Width: 40 inches (1000mm) - 47 inches (1200 mm)
Length: 16 feet (5000 mm)
Height: 7 feet (2100 mm) 

The roof should be covered with transparent or opaque corrugated roofing material. For easy maintenance and sanitation, a concrete floor that can be hosed down daily is recommended.

Nest Box:

In their natural habitat, they nest in a tree cavity, high above the ground, filled with chips or turf. In captivity, a standard rosella nest box size would be 10" x 11" x 24". Rosellas like their nesting place to be high up -- ideal would be 5 to 10 meters - or as high as the aviary allows. The nest log or box should be placed at the rear of the aviary in a sheltered location to protect it from the elements and provide privacy.

• Please click here for in-depth information on breeding.
• Click here for average clutch sizes and incubation data for the different rosella species.

Taxonomy:

Species: Scientific: Platycercus caledonicus ... English: Green Rosella, Tasmanian Rosella ... Dutch: Geelbuikrosella ... German: Gelbbauchsittich ... French: Rosella à ventre jaune

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